= Runtime Library Notes

== Directory Structure
    sd8516/                  project root
      runtime/
        crt0.sda             startup stub -- CALL main
        librt/               runtime functions
          divhi3.c
          modhi3.c
          divsi3.c
          muldi3.c
          ...
          softfloat/         the SF/DF families
        include/             freestanding headers (mine & what clang supplies)
        tests/               tests with checks


== Prep Work
* Helper scripts were created this time: ''c2sda'', ''c2ll'', ''ll2sda'' and ''runtests''.
* Next I had to modify VC-4 to take .sda files at the command line (to speed the dev cycle).
* Next I created the above directory.
* I will have to modify vc4 to look in ~/.vc4 if the files it needs are not in the pwd.